Pea-thresher.



No. 680,097. Patentad Aug. 6, I901. I. T. WHITE.

PEA T-HBESHER.

(Application filed Kay 23, 1900.;

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W1 humus No. 680,097. Patented Aug. 6, mm;

m. T. WHITE.

PEA THBESHER.

(Application fllcd May 23. 1900.)

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UNITED STATES PATENT OFFICE.

MARTIN T. WHITE, OF MAURY CITY, TENNESSEE.

PEA-'I 'HRESl-IER.

SPECIFICATION forming partof Letters Patent No. 680,097, dated August 6,1901.

Application filed May 23, 1900. Serial No. 17,671. N model.)

To all-whom it may concern: 7

Be it known that I, MARTIN. T. WHITE, a citizen of the UnitedStates,residing at Maury City, in the county of Crockett and State ofTennessee, have in vented new and useful Improvements in Pea-Threshers,of which the following is a specification.

My invention relates to improvements in pea-threshers; and it pertainsto a thresher, as hereinafter shown and described, whereby the peas arethreshed from the vines and their pods and separated.

In the accompanying drawings, Figure l is a vertical sectional view. ofa thresher embodying my invention. Fig. 2 is a top plan view of thesame. Fig. 3 is an enlarged plan view of a portion of the reciprocatingpan provided with perforations havingoppositely inclined lips. Fig. 4 isa vertical sectional view of Fig. 3. Fig. 5 is a top plan View (fullsize) of a portion of the lower screen. Fig. 6 is a sectional view of aportion of the primary concave. Fig. 7 is a detached view of one of theprimary con cave knives.

Referring now to the drawings, B indicates the framework of the machine;A is the bottom beam, to which are journaled in any desired manner theusual supporting-wheels B, by means of which the machine may be conveyedfrom place to place.

0 is what I term my primarythreshingcylinder, and D my primary coactingthreshing-concave, the said concave pro vided with a plurality oftransverselyarranged teeth a and one row of triangularshaped knives a infront projecting upward and inward therefrom,and between which the teethb, projecting from the periphery of the threshing-cylinder 0, pass, theteeth b upon the cylinder 0 being preferably arranged in staggeringrelation and adapted,as j ust stated, to pass between the projectingteeth a and knives a of the primary threshing-concave D. The peas andthe vines are placed in this threshing-cylinder, and the teeth 12 andteeth 0, and knives a serve to thresh and separate about eight-tenths ofthe peas from their pods, and the knives a serve to cut up the vines orhay into small pieces, which prevents the vine from becoming wrappedaround the teeth of' an ordinary concave and cylinder, which would serveto interfere with the operation of the machine and also making it heavyand hard to run. The hay or vines being cut into small pieces it becomeslighter than the peas and is more readily separated therefrom throughthe medium of the mechanism which I will now describe.

The cylinder 0 revolves about three hundred revolutions per minute, andthe vines and peas are thrown thereby against the' beater E, whichchecks them and causes them to drop down upon the shaker-pan F. Thisshaker-pan F extends from just under the inner side or edge of theprimary threshing-cylinder to the rear end of the machine, and situatedwithin this pan and connected to the bottom thereof are a plurality ofbars 0, having rearwardlyprojecting ratchet shaped teeth, which servewhen the pan is being reciprocated (in a manner to be presentlydescribed) to cause the out hay and pods to be fed rearward and over theends thereof upon any suitable conveyer situated there to receive it,such as is usually used in connection with the threshing-machines, andas that forms no part of my invention need not here be shown ordescribed.

The shaker-pan F has its bottom provided with a plurality of U-shapedperforations d and e, the said perforations arranged in alternate rows,as illustrated in Fig. 3. The perforations d have upwardly-inclined lipsor deflecting-plates f, which are in efiect consti tuted by the mannerof cutting the opening, as will be readily understood, and theperforations e are provided with corresponding but oppositely anddownwardly inclined deflectors or walls g. Situated below the pan F is ascreen G, which is preferably provided with round holes and throughwhich the separated peas pass and drop upon a screen H, which is of apeculiar form, to be hereinafter described.

The upper reciprocating separating mechanism consists of a pad F, whichis situated a little. below the threshing-cylinder O, and has securedthereto a short distance below a screen G. The said upper separatingmechanismis supported upon supports J, which have their upper endspivotally connected thereto and their lower ends pivotally connected tothe beam A a little in the rear of' ,their respective ends pivotallyconnected, re-

spectively, with the upper part of the frame A and the lower separatingmechanism. The lower separating mechanism M, which carries the screen H,(before briefly referred to,) is reciprocated by the reciprocation ofthe upper separating mechanism through the medium of a bar P, which hasits lower end pivotally connected to the beam A and its upper endconnected with the upper separating mechanism 1. connected with thelower separating mechanism M and its opposite end provided with an eyeor loop 2', which surrounds the verticallyarranged rod P. This loop ofthe rod Q engaging the vertical bar P about half-way its length and thevertical bar P being vibrated by the upper separating mechanism I itwill be seen that the lower separatingmechanism M is vibrated aboutone-half the distance the upper separating mechanism is vibrated.

The upper separating mechanism consists of the shaker-pan and the screenG, .which is attached thereto, but below it, and the shakerpan isprovided with u pwardly projecting side walls.

The object in having the vertically-arranged supports J extendingslightly backward of a vertical line is to cause a backward jumpingmovement to be given the shakerpan, whereby the hay or vines are moreeffectively moved to the rear end of the machine to be conveyed away.

The peculiar construction of the perforations with oppositely-extendinginclined deflectors is that the perforations which have thedownwardly-inclined deflectors constitute openings through which theseparated peas will more readily pass onto the screen G, and through themedium of the blower or fan R a draft is conveyed through theseperforations, owing to their inclined deflectingwalls,

in a rearward direction, which assists the shaker-pan and the notchedbars therein in conveying the cut hay to the rear of the machine, aswill be readily understood.

For the purpose of more efiectively separating the injured and brokenpeas from the whole and select peas the screen H is provided withtransversely-elongated meshes m. (Shown full size in Fig. 5.) Thebroken, in-

jured, and imperfect peaswill fall through this peculiarly-shaped screenonto a sheetiron inclined bottom S and pass out through A rod Q has oneend rigidly anopening 10, situated just beyondthe'trough conveyer T,while the good, firm, and perfect peas will fall into the said troughconveyor and be conveyed-thereby into a bag or other receptacle situatedat the end of the trough to receive them. The trough conveyor T is ofthe usual form and need not be specificallyidescribed or'ilius'tratedherein, as it is well understood by those skilled in the art. The fan R,in addition to furnishing a blast through the shaker-pan, as beforedescribed, also furnishes a blast to the top of the screen 1-1 andserves to remove any small particles and rubbish from the peas beforethey reach the conveyerT and to blow them out through the rear end ofthe machine.

It is found in practice that the passage of the peas through the primarythreshing-cylinder O and concave D of machines for this purpose wouldnot thoroughly thresh all of the peas and that about two-tenths of thepeas would remain unth reshed in broken portions of the pods, &c. It ismy-object to prevent a waste of this two-tenths of the peas. In order toaccomplish this result, I provide a trough conveyor 2, situated acrossthe rear end of the machine and below the outer end of the shaker-pan,below the outer ends of the screens G and H. The outer wall 3 of thistrough extends upward and outward and is adapted to catchthe podscontaining peas, which, owing to their weight, will drop into thistrough, while the hay and separated pods will be thrown by the fanbeyond the trough 2 and upon the conveyer, which may be situated thereto receive it, as before explained.

Supported by the upper portion of the ma chine is what I term asecondary threshing cylinder and concave 4, which is about half thediameter of the primary concave and cylinder and which has shorterteeth, the teeth being preferably set nearer together, but the ends ofthe teeth about the same distance from the inner wall of the concave.This secondary cylinder is revolved about one and two-thirds faster thanthe primary cylinder, which makes about one-fifth more velocity on theperiphery than the primary, which I find to be very essential andnecessary in a machine of this character in order to accomplish the endin view.

Situated under one end of the trough conveyer 2 is a suitable receptacleor chamber 5, which receives from the said conveyor the unthreshedpea-pods,which are carried there by, as will be readily understood.

An upwardly-inclined conveyer-casing 6 has its lower end connectedwiththe chamher 5 and its upper end situated just above the secondarythreshing cylinder and concave 4. Situated within this conveyor-casingis an endless conveyor 7, (shown in dotted lines, Fig. 1,) of anywell-known form, which will convey the unthreshed pods from the chamber5 and deliver them to the secondary concave and cylinder'to berethreshed and from which they pass through a suitable spout 8 into themachine to be separated, as before described in respect to the peaswhich are separated from. the pods by the primary cylinder and concave.

The secondary cylinder has only a small amount of work toperform-mamely, the threshing of those pods which have not been threshedby the primary cylinder and by performing this operation separately anddistinct from the primary cylinder,- which, as before stated, is alreadyoverloaded or overworked, which causes the imperfect separa tion of thepods, I am enabled to accomplish by the use of a primary and a secondarythreshing mechanism a thorough separation of all of the peas and toprevent the waste of two-tenths, which occurs where only a primarycylinder and concave are used.

By means of a machine constructed as herein shown and described I amenabled to thoroughly thresh and separate the peas and to prevent anywaste thereof, and which is found to be a great saving in pea-threshingmachines.

My machine is driven from the primary cylinder, which will be suitablyconnected with the source of power, such as an engine. A belt 1 connectsthe fan R with said primary cylinder at its left-hand end. Thecrankshaft K is driven by a belt 2' at the same end of the spindle ofsaid primary cylinder as the belt 1. The conveyer T for conveying theshelled and cleaned peas to the receptacle for receiving them is drivenby belt 3, passing around a pulley at the left-hand end of thecrank-shaft K. The heater is driven from a pulley 4, situated on theright side of the machine. The secondary cylinder is driven from apulley 5 on the left end of the beater-shaft. The conveyer situated intrough 6 is driven from a pulley and belt 6 on the left end of thesecondary-cylinder shaft, and. the tailings-auger is driven from apulley and belt 7 on the right end of the conveyer 7.

Having thus described my invention,what

I claim, and desire to secure by Letters Patent, is-

1. A pea-.thresher comprising a threshing mechanism, a separatorcomprising an upper reciprocating member, an independent lowerreciprocating member, a vertically-arranged bar having one end connectedwith the upper reciprocating member, and a connection be tween the saidbar at a point intermediate its ends and the lower reciprocating memberof the separator whereby the movement of the upper member causes areciprocation of the lower member, substantially as described.

2. A pea-thresher comprising a threshing mechanism, and a separatingmechanism includin g a horizontally-reciprocating member, andvertically-arran ged supports having their lower ends connected with theframe of the machine and their upper ends connected with the saidreciprocating member, the verticallyarranged supports being inclinedslightly rearward of a vertical line, and a separating member providedwith rearward-projecting teeth, the parts adapted to operatesubstantially as described.

3. A pea-thresher comprising a supportingframe, a threshing-cylindertherein, a reciprocatin g sieve below said cylinder, verticallyarrangedre-arwardly-inclined supports having their lower ends pivotallyconnected to frame and upper ends to the sieve, a lower reciprocatingsieve, supporting-links having their upper ends pivotally connected tothe sieve and the lower ends to the frame,'an operating-bar pivotallyconnected to the upper sieve and the frame, and a lever having one endconnected to the lower sieve and the other end adapted to receive thesaid bar, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

MARTIN '1. WHITE.

Witnesses:

J. H. CHANDLER, S. G. BOOTH.

